Concrete mold



Jul 28, 1925.

W. P. STANTON CONCRETE MOLD Original Filed Nov. 22, 1921 //V VENTO R W01. c0 7'7. P STANTON Patented .luly 2 8, 192 5.

'umrao srAras" 1,541,529 Pri ENr OFFICE.

WOLGOTT, P. STANTON, F FRANCISCO, CALIFORNIA, ASSIGNO'R TO NATIONAL STONE-TILE CORPORATION; OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF onmronnra.

CONCRETE MOLD.

Application filed November 22,1921, Serial no. 517,009. amazed June 1a, 1923.

To all whom it may concern:

a citizen of the United States, and resident of San Francisco, inthe county of San Francisco, State of California, have'invented new and useful Improvements in Concrete Molds, of'which the following is a specification,

- M invention relates primarily to a mold for ollow concrete blocks, used in hollow wall construction, although I do not limit self contained, which will be of the minimum weight so as to be easily handled and at the same time of the: maximum strength and rigidity required,

Another object is. t

o providewalls of a thickness sufficient to obviate any liability or tendency of the adjacentblocks becoming bonded or connected together through 1nadequate spacing after the mold is removed.

Another object is to provide a mold which will be easily and quickly adaptableto either hollow or solid blocks.

. Other objects and advantages will appear hereinafter and, while I- haveshown and will describe the preferred form" of-my invention it will be understood that I do not limit myself to'such preferred ..form,,but

.that various chan es and adaptations may be made therein wlthout departing from the spirit of my invention,

In the drawm in a part hereof: ,1 l ig. 1 is a top plan of my mold readyfor use is a side elevation of Fig. 1, partly in section on the line 2-2 of Fig. 1.

Fig. 3 is a section on the line 3-3 0f Fi 1. v %ig. 4 is a section on the line 4-4 of Fig. 1.

Fig.5 is an enlarged fragmentary detail {I of one of. the cores used when hollow blocks are produced. b 'Fig. 6' is a'perspective view of one of my hollow blocks. Referring to the drawings prises a rectangul each end with outwardly pro ecting handles 11 and 12 by means of whlch the mold is transported from laceto lace.

Extending longitu ally 0 frame and my mold comtheir ends thereto are a gs accompanying and form .jecting tongues 28 and 29 which ar frame 10 provided at connected at their ends to the end pieces thereof are a .plurality' of partitions 13, equallyspaced, and extending transversely between these partitions 13 and connected at plurality of cross partltlons 14, these partitions 13- and '14 serving to divide frame 10 into a plurality of rectangular molds 15 within which the .blocks 16 are formed,-it bein understood a that the number of these mol s into which myself to anyspecific form ofblock, vand. .the object thereof is to provide a mold for I theabove purpose which will be entirelysaid frame 10 is divided may be varied at 15'near each end thereof are pairs of rods 17 and 18 which rods are passed throughapertures 19 in the upper edges of partitions 1'3 and supported thereby, and detachably mounted on said rods 17- and 18-, within each of said molds 15 are the core members. 20 and 21.which depend downwardly into;-. said molds their lower edges bein 1n the same plane as the lower edges of said partitions and-frame.

mold I may form the partitions, cores,. and

Inv the construction of my 1 walls of the frame hollow to secure li htness and strength and also suflicient thickness to prevent the blocks becoming. connected together when the mold is removed.

It will also be notedthat thewalls maybe tapered or narrowed downwardly the purpose bemg to provide suflicient draft to facilitate removal of the mold after the plastic material has been poured and the blocks formed. In-constructing my partitions. and wallsl provide one wall 22, the

longitudinaledges 23 and 24 of which are bent at a right an Is to form a trough. substantially U-shape in cross section. Wall 25 is similarly formed of a size or width to snd ly fit within the edges or trough of wal 22 and its. edges 26 and 27 act as spacers to hold the sidewalls at their proper distance a art togive the required thickness to the wal s. Theseabutting inturned edges are soldered securely together. The ends of the cross partitions. are provided with proproject through slots 30 and 31 in the partitions 13 and are'bent-over and soldered to preventwithdrawal. The ends of partitions 13 are similarly connected to the end walls of frame 10. vIn constructin my cores 20 and 21 I first form a rectangu ar casi 32, the

lower ed e of which is foldedmwardly.

upon itse as at 33. The bottom 34; is

65 will, Extending transversely across molds formed with its edge bent at right angles and is positioned within casing 33 to rest upon the top of the folded edge thereof and is soldered in position. The cover is formed and secured in position in a similar manner. The purpose of the spaced bottom is to permit the lower edge of the casing 33 to penetrate into the sand forming the bed of the mold. In the use of my mold the same will first be positioned upon a bed of sand or the like in the position shown in Figs. 1 and 2. Plastic concrete or like material will then be poured into the, molds 15 and allowed to set slightly, after which the .mold will be lifted by means of the handles 11 and 12 and conveyed to another place of use, the blocks just formed being permitted to remain on the bed of sand or the like until set.

When it is desired to cast blocks solid the rods 17 and 18 are withdrawn from position when the cores 20 and 21 may be removed.

The advantage of the present mold isthat it' includes a self-contained core member and is open at its top and bottom. Therefore, when it is placed upon a support material may be poured into theftop of the mold to form a hollow block and the mold including the core member maybe lifted as a unit,

leaving the molded block in place to dry and set while the mold is being used to form other blocks. p

aving described my invention what I claim is:

1. A mold for concrete blocks comprising a substantially rectangular casing open at the top and bottom; interengagmg partitions dividing said casing into a plurality of rectangular molds, the walls of said casing and partitions tapering downwardly away from each other, whereby the area of said molds decreases from the bottom to the top; rectangular cores suspended at their upper ends to extend into said molds, the walls of said cores tapering downwardly and inwardly towards each other,whereb the area of "said cores increases from t e bottom to the top.

2. A mold for concrete blocks composed of .aplurality of interengaging partitions forming a plurality of'rectangular molds,

theopposing walls of said molds tapering downwardl away from each other; a core suspended y' its upper end from the edge of said partitions and extending downwardly into said molds and having its walls tapering oppositely to the walls of said molds. x

3.- A mold comprising a frame 0 en at the to and bottom; artitions unite there- 'withividing said ame into a plurality of molds; a core connected at its upper end to said partition and extending downward- 1y into'each of said molds, the walls of said frame, partitions and cores taperin downwardly away from eachother; ,an a handle extendingfr'om each end of saidframe.

4. Ina .mold a frame open at the top and bottom partitions dividing said frame into a plurality of molds; a plurality of rods secured at theirends to the sidel walls of said frame and extendingthrough the side walls of said molds .near the top there of and cores mounted at their upper ends upon said rods to extend downwardly into said molds, the opposed walls of said frame and partitions tapering downwardly away from each other whereby the area of said molds decreases from the bottom to the top.

5.'In a mold a frame; vertically extendof said molds suspended at its up 1' end upon said rods to extend downwar ly into said molds. I

6. In a mold a rectangular frame; a handle projecting outwardly from each end of said frame; partitions dividing said frame into a plurality of rectangular molds; a plurality of pairs of rods extending transversel across said frame and being secured at their ends to the side walls of said frame, there bein one pair of said rods for each of said molds; and a core rigidly suspended .fropdi said rods to extend into each of said mo s.

7. In a mold a rectangular frame; ahandle projecting outwardly. from each end of said frame; partitions dividing said frame into a plurality of rows of rectangular molds; a plurality of pairs of rods secured at. their ends to the side walls ofsaid frame to extend transversely ,thereof at the top, there being one pair, of said irods for; each of said rows of molds; "a core 'ri idly secured at its 11 per end to said to s toextend downwar ly into each of; said molds.

8. In a mold a ,frame; part itions dividing said frame into aplura ity of molds the walls of said frame and partitions beingformed of two substantially U-shaped members adapted to fit snugly one within'the other with their shorter legs abutting, -.the ends of the shorter legs of the inner one of said members abutting against the inner surface of the longer leg of the outer one of said members and acting as spacers to main other from one edge to e other partitions ta or towards each 9. A mold for concrete blocks composed of an outer frame and a lurality of interen' gaging partitions divi ingthe same into a plurality of molds, the opposingwalls'of said frame and partitions tapering downwardly away from each other a :coresus: pended by its upper end'from the upper;

edge of saidmolds and extending downwardly' into said molds, and havin its walls tapering oppositelyto the oppose walls of said partitions.

10. A concrete mold comprising a frame;

a plurality of interengaging partitions di viding said frame into a plurality of molds cores connected at their upper ends to the ing'a casing open 'at the top. and bottom;

'of a pluralit of interengaging partitions forming a 'interengagm'g partitions dividing said castend into said mold, the upper edge of the walls of said casing, said. partitions, and the to of said cores, being flush-with. each ot er. Q r

12. A mold for concrete blocks, composed urality of individual 1 molds; and a core or each of said molds suspended'by'itsupper end from the upper edge of said partit1ons,'the upper edge of said a'rtitions and the top of said cores lying a 1 in.

the same horizontal plane.*

'13. A mold for concrete blocks composed of a plurality of interen'ga ing partitions formin a pluralit of molj s, the opposed walls 0 said partitions being tapered" downwardly away from each. other whereby the areas of said molds decrease-- the bottom to'the top.

- 14. A mold for concrete of a plurality of interen aging hollow partitions, and a pluralitiyo hollow cores, 'sa1d cores being suspende by their'top walls to extend downwardly between said artitions.

15. A' mold for concrete bloc having hollow walls and cores, said walls and cores ing a bloclrs compo sedbeing connected together to form a unitary structure.

16. A mold of the character describeddivided into a series of molds each mold carry fixed core member forming a part thereof.

17; A brick mold composed of interengaging partitions arranged to 'form a lurality of integral molds; cores depen' 'ng intosaid molds, the walls of said partitions and cores being so. constructed'that the area of said molds decreases'from the bottom to the top.[ Y j 18. Abrick mold. composed of integral interengaging partitions arrangedtoform a plurality of integral individual molds;

cores suspended b their up er walls from the upper edges 0 said .=part1tions to extend into said molds, the walls-of said partitions and molds tapering downwardly awa from each other, and the upper edges of'sai walls aiid' times all lying the same horizontal "P ing into a plurality'of. individual molds; cores suspended at their upperlends to exber arranged in each mold, and means for;

supporting the core members in fixed position .within 'the molds, said supporting means. leaving the molds I around theicore members substantially; open at their top and;

bottom sides.

20. A multiple mold comprising aframe, partitions thereinv dividing the frame intoa plurality of individual mold sections, a core member arranged in each mold section and connecting means between the core member and partitions extending along the gtop thereof for securing the .core ;.:member' in place, said. connecting means leavl n "the.

spaces around the" core; members Tsu tially open at'their top and bottom sides whereby when the mol is placed upon the support, the-spaces may be filled from the top and'thereafter the mold and core member removed byflifting the-same;

In witness that-11 claim. he foregoingI have-hereunto subscribed my name this 24' day of September, 1921. 1

wo ooT'r P. s'ralqrori. 

